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Altera_Forum
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11 years ago

DE1-SoC - Change GPIO Output Voltage

Hi! Just wanted to make sure I got this right: I am using the DE1-SoC (Cyclone V FPGA). There is no way to change the output Voltage of the GPIO-Pins internally (in Quartus or by jumpers...
Altera_Forum's avatar
Altera_Forum
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11 years ago

You would have to power the bank off a different power rail. In other words this isn't something under programmable control, you have to physically connect the bank to a different rail which could be very difficult depending on the layout of the board. If you look at the schematics you'll see the bank voltages with names like "Vccio"